Home / 66,730.19-92,078.55-39,866.99

Finding the Fourth Proportional to 66,730.19, 92,078.55 and 39,866.99

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Solution

The fourth proportional to 66,730.19, 92,078.55 and 39,866.99 is: 55,011.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,730.19 : 92,078.55 = 39,866.99 : x
  2. Step 2: Convert to fraction form
    66,730.19/92,078.55 = 39,866.99/x
  3. Step 3: Cross multiply
    66,730.19x = 92,078.55 × 39,866.99
  4. Step 4: Simplify right side
    66,730.19x = 3,670,894,171.67
  5. Step 5: Solve for x
    x = 3,670,894,171.67/66,730.19
  6. Step 6: Final answer
    x = 55,011.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.